Are there any custom open-source applications that use openssh?

So I have some specific environment (like linux os based phone) so I have no such thing like terminal. All I can do is create my own UI's using C++ and some SDK I am provided with.

I want to create an ssh client application for my device. Its not a work, nor a homework - just for fun that means I have lots of time for solving conflicts that may appear.

My main problem is I have never worked with OpenSSH as a lib... and when I look on it it seems some large mountain to me.

So I ask for your h开发者_如何转开发elp - have you seen any open-source ssh clients that use SSH methods with their own UI's based on OpenSSH or, better Portable OpenSSH?

PuTTY for example.